Carin said that this one looked very proper, lordly and all that. I think it's to do with the one foot crossing over the other. Quite a strut, there. I was nearly lying on the ground to take this one; I try to make myself small so as not to spook the birds. Pigeons are good for this, especially pigeons near hot dog vendors, because they don't spook easily. Well, not until some kid leaps up yelling "rar!" and makes them all fly away.
Also on Wikipedia.